HK1076516A1 - Device with controllable impedance - Google Patents

Device with controllable impedance

Info

Publication number
HK1076516A1
HK1076516A1 HK05108421.7A HK05108421A HK1076516A1 HK 1076516 A1 HK1076516 A1 HK 1076516A1 HK 05108421 A HK05108421 A HK 05108421A HK 1076516 A1 HK1076516 A1 HK 1076516A1
Authority
HK
Hong Kong
Prior art keywords
axis
circuit component
controllable impedance
winding
circuit
Prior art date
Application number
HK05108421.7A
Inventor
Espen Haugs
Frank Strand
Original Assignee
Magtech As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NO20015690A external-priority patent/NO318397B1/en
Application filed by Magtech As filed Critical Magtech As
Publication of HK1076516A1 publication Critical patent/HK1076516A1/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/32—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/021—Current limitation using saturable reactors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electrical Variables (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The invention relates to a circuit component (L1) with controllable impedance, comprising a body (1) of a magnetisable material, a main winding (A1) wound round the body (1) about a first axis and a control winding (A2) wound round the body (1) about a second axis, at right angles to the first axis, where the main winding (A1) is arranged for connection to a working circuit in which the circuit component (L1) is to be employed and the control winding (A2) is arranged for connection to a control unit for controlling the impedance in the working circuit. The invention also relates to various current and voltage regulating devices comprising the circuit component or a similar transformer device.
HK05108421.7A 2001-11-21 2005-09-23 Device with controllable impedance HK1076516A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20015690A NO318397B1 (en) 2001-11-21 2001-11-21 System for controlling impedance in a working circuit
US33256901P 2001-11-26 2001-11-26
PCT/NO2002/000434 WO2003044612A1 (en) 2001-11-21 2002-11-21 Device with controllable impedance

Publications (1)

Publication Number Publication Date
HK1076516A1 true HK1076516A1 (en) 2006-01-20

Family

ID=26649335

Family Applications (1)

Application Number Title Priority Date Filing Date
HK05108421.7A HK1076516A1 (en) 2001-11-21 2005-09-23 Device with controllable impedance

Country Status (12)

Country Link
EP (1) EP1456728B1 (en)
JP (1) JP2005510076A (en)
KR (1) KR100925300B1 (en)
CN (1) CN100397277C (en)
AT (1) ATE349730T1 (en)
AU (1) AU2002366185A1 (en)
CA (1) CA2467986C (en)
DE (1) DE60217173T2 (en)
ES (1) ES2279902T3 (en)
HK (1) HK1076516A1 (en)
PT (1) PT1456728E (en)
WO (1) WO2003044612A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407214A (en) * 2003-10-14 2005-04-20 Magtech A S Variable inductor
NO322286B1 (en) * 2004-12-23 2006-09-11 Magtech As Device and method for reducing harmonics in a three-phase power supply
US20100123356A1 (en) * 2008-11-14 2010-05-20 General Electric Company Resonance mitigation system and method
DE102010006598B4 (en) 2009-03-03 2021-07-22 Sew-Eurodrive Gmbh & Co Kg Method of operating a line termination device and line termination device
CN102148503A (en) * 2010-02-08 2011-08-10 芮骏 Automatic adjusting and controlling device for electricity energy quality
WO2011122929A1 (en) * 2010-03-30 2011-10-06 Sang Boon Lam Device and method of improving electricity
DE102011076877A1 (en) * 2011-06-01 2012-12-06 Siemens Aktiengesellschaft Adaptive line filter
WO2013029688A1 (en) * 2011-09-02 2013-03-07 Alstom Technology Ltd Current limiter
SE537081C2 (en) * 2012-08-03 2014-12-30 Swedish Neutral Ab An apparatus comprising an adjustable grounding transformer
CN103762597A (en) * 2014-02-18 2014-04-30 中国船舶重工集团公司第七0四研究所 Method for controlling parallel power quality regulator through non-harmonic detection
CN104009476B (en) * 2014-05-07 2016-08-24 燕山大学 Electric energy regulator and control method
JP6793930B2 (en) * 2016-03-31 2020-12-02 国立大学法人東海国立大学機構 Magnetic sensor and magnetic measuring device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757201A (en) * 1972-05-19 1973-09-04 L Cornwell Electric power controlling or regulating system
US4210859A (en) * 1978-04-18 1980-07-01 Technion Research & Development Foundation Ltd. Inductive device having orthogonal windings
SE462244B (en) * 1988-09-21 1990-05-21 Asea Brown Boveri ELECTRO-LINE PROTECTION FOR EARTH ERROR DETECTION
SE9203331L (en) * 1992-11-09 1994-05-10 Asea Brown Boveri Controllable inductor and use thereof
JP3384014B2 (en) * 1993-03-10 2003-03-10 ソニー株式会社 Switching power supply
US5684678A (en) * 1995-12-08 1997-11-04 Delco Electronics Corp. Resonant converter with controlled inductor
SE515458C2 (en) * 1996-03-15 2001-08-06 Abb Research Ltd Controllable reactor with feedback control winding
JP2001035723A (en) * 1999-05-20 2001-02-09 Fuji Elelctrochem Co Ltd Drum core, drum-type rectangular core and variable type linearity chock coil using them, variable type linearity choke coil with base, and rectangular transformer
JP3439692B2 (en) * 1999-05-21 2003-08-25 東北電力株式会社 Magnetic flux control type electromagnetic equipment
NO317045B1 (en) * 2000-05-24 2004-07-26 Magtech As Magnetically adjustable current or voltage regulating device
JP2004227185A (en) 2003-01-21 2004-08-12 Toshiba Corp Antenna unit and card processing system
US7176742B2 (en) 2005-03-08 2007-02-13 Texas Instruments Incorporated Bootstrapped switch with an input dynamic range greater than supply voltage

Also Published As

Publication number Publication date
ATE349730T1 (en) 2007-01-15
DE60217173D1 (en) 2007-02-08
ES2279902T3 (en) 2007-09-01
DE60217173T2 (en) 2007-10-04
CN100397277C (en) 2008-06-25
EP1456728A1 (en) 2004-09-15
JP2005510076A (en) 2005-04-14
KR20050044584A (en) 2005-05-12
CA2467986A1 (en) 2003-05-30
AU2002366185A1 (en) 2003-06-10
EP1456728B1 (en) 2006-12-27
KR100925300B1 (en) 2009-11-04
CA2467986C (en) 2012-04-10
PT1456728E (en) 2007-03-30
CN1618049A (en) 2005-05-18
WO2003044612A1 (en) 2003-05-30

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20161121